Home / 136,225.46-187,989.33-76,609.46

Finding the Fourth Proportional to 136,225.46, 187,989.33 and 76,609.46

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Solution

The fourth proportional to 136,225.46, 187,989.33 and 76,609.46 is: 105,720.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,225.46 : 187,989.33 = 76,609.46 : x
  2. Step 2: Convert to fraction form
    136,225.46/187,989.33 = 76,609.46/x
  3. Step 3: Cross multiply
    136,225.46x = 187,989.33 × 76,609.46
  4. Step 4: Simplify right side
    136,225.46x = 14,401,761,057.06
  5. Step 5: Solve for x
    x = 14,401,761,057.06/136,225.46
  6. Step 6: Final answer
    x = 105,720.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.